Compartment-kiln.



R. H. MCELROY. COMPAR-TMENT KILN. APPLICATION mEn sEPT.1.191z.

.Patented Apr. 30, 1918.

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CDIVIPARTMENT KILN.

APPLICATION FILED SEPT.|, I9I?. LQMWI Patented Apr.3o,1918.

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R. H. MCELROY. COMPARTMENT KILN'.

APPLICATION FILED SEPT. I, 1917. Iyh

Patented Apr. 30, 1918.

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ROY I'I. MGELROY, OF DAYTON, OHIO, ASSIGNOR T0 INTERNATIONAL CLAYMACHINERY C0., OF DAYTON, OHIO, A CORPORATION OF MAINE.

GOMPARTMENT-KILN.

To all 'whom #may concern.'

Be it known that ROY H. McELRoY, a citizen of the United States,residing at Dayton, in the countyof Montgomery and State. of Ohio, hasinvented certain new and useful Improvements in Compartment- Kilns, ofwhich the `following is a' specication. Y

This invention relates to new and useful improvements in sectionalkilns. One ob- `iect of the invention is to provide a kiln which permitsthe preheatedair from the cooling compartments to be divided and to bedelivered to and utilized in burning a plurality of compartments at atime. An-

. other object of the'invention is to provide means whereby the wasteheat may be con- `ducted either to the main draft flue or a waste heatdrier iiue. Other objects of the invention will be described in thespecification and particularly pointed out in the claims.

Referring to the accompanying drawings,

Figure 1 is a longitudinal vertical section on the line 1-1 of Fig.2.Fig. 2 is a plan view, the upper portion being a section on the line 2aa and the lower portion being a section on the line 2b--2b of Fig. 1. fFig. 3 is a view similar to Fig. 1, same being a section on the line 3-3of Fig. 4. l is a plan view, the upper portion being a section on theline Fe-la` and the lower portion being a view on the line 2-2b of Fig.3. Fig. 5 is a section on the line 5--5 of Fig. 1. Fig. 6 is a detailedsectional view on the line 6--6 of Fig. 5 showing the method ofdistributing theV gases as they leave the kiln. Fig. 7 is a top planview of the details shown in Fig. 6.

lt is to be understood that the present invention may be applied to anywell known type of compartment kiln, either single or Vdouble( batteryor` en bloc.

. tion from the previously fired and cooling compartments in the rear.The* green ware 'is placedlin the kiln somewhat in advance Specificationof Letters Patent.

Patented Apr. 30, 191%..

Application filed September 1, 191'?. Serial No. 189,400.

of the compartment being fired and the burnt ware is removed from acompartment somewhat in the rear and after the ware has cooled.

Referring to the kiln asl illustrated'in the drawings and moreparticularly to Figs. 1, 2 and 5, 1 represents the kiln which is pro-`vided with a plurality of division walls 2 which form the variouscompartments.l The kiln is provided with. side walls 3 which form theends of the compartments and which are provided with door openings4ladapted to receive wickets 5 and which permits access to be had to theinterior of the kiln. The compartments are provided with gas ports 6which discharge into the compartments behind bag walls 7 located alongone side of the compartments. ln the present instance the gaseous fuelis supplied to the ports 6 through down-takes 8 which extend through thedivision walls 2. The down-takes 8 communicate with lateral gas ducts 9in the present instance located at the top of the kiln. Thiscommunication is controlled by valves 10 which control the supply of gasto the ports 6. The downtakes 8 and ducts 9 represent one accepted formof gas distribution, but it will be understood that the gas may besupplied to the compartments by anv well known means. The air utilizedin supporting the combus tion of the fuel enters the compartmentsthrough air ports l11 behind the bag walls 7 and below the gas ports 6.The air for the burning compartments is divided and delivered fromcompartments in the rear, and the gases are conducted away from theburning compartments to the pre-heating compartments in front, throughair tlues 12 which pass through or beneath the walls 6 and under floors13 of the compartments. The various compartments deliver air or theburnt gases to the flues 12 through perforated portions lll of thefloor. ln the construction shown in Fig. 1 it is contemplated thatalternate compartments Vare inter-communicating as are the intermediatecompartments, e., the first communicates with the third and the secondwiththe fourth. To permit the air and gases to be thus distributed, theilues 12 are of a length equal to twice the width of each compartmentand,

any one flue 12 is solid as at 13, while the ioor of any compartmentwhich communicates with any one flue 12 is perforated as at 14. FAS willbe seen from the lower portion of Fig. 2 this arrangement is secured byarranging the flues 12 in a staggered relation, the ends of the fiuesbeingV formed by the lower portion of the bag walls 'l'. rlo

permit the end compartments of the kiln tov communicate, the kiln, whenconstructed in a single battery, is provided with return flue whichconnects the ends of the fines 12;l and when constructed in a doublebattery or a double row of compartments en bloc, lateral return fluesare provided, which constructions are not shown but are well known. inthel art.V After the gasesv have passed through the green ware therebjpre-heating the saine, said gases are conducted out of the kiln throughlateral draft tlues 15 which lie below the various compartments andcommunicate with the fines 12 below the perforated portions 14 of thefloor. 'lhe llues 15 extend to the side of the kiln uf'here they may beconnected either to a main draft tine 16 or a waste heat drier flue 17.r1`he lateral draft flues 15 are provided with ports 18, while the flues16 and 17 are provided with ports 19 and 20 respectively. The ports 19and 20 are located on adjacent sides of each of the ports 18 in aright-angular relation, both being at the same distance therefrom. Thisarrangement permits the port 1S to be connected with either the port 19or 20 by a hood 21. When it is desired to utilize the heat of the sulfurgases passing out of the kiln in a waste heat drier, the hood 21 is soplaced as to connect any one of the ports 18 with its respective port 20ofthe waste heat drier ue 17. llVhen it is desired to conduct the gasesto a stack or other draft appliance through the main draft flue 16, thehood 21 is connected with respective portV 19 of the main draft flue 16.The main draft flue 16 is provided with any suitable draft appliancesuch as a fan or stack (not shown). l/Vhen not in use the ports 1S, 19and 20 may be closed by caps 22. Y

In Figs. 1 and 2 it is contemplated that a. plurality of compartmentsmay be burned by introducing the air into any one of the burningcompartments from the next succeeding compartment in the rear, the burntgases being delivered to the second com` partment ahead. 1n Figs. 3 and4 the air passing through any two compartments in the rear is dividedand delivered to the neXt two burning compartments ahead. A portion ofthe air passing through any one cooling compartment is delivered to anyone of the burningy compartments. This varrangement is secured throughthe aid of air iues 23 and 24. The flues 23 which are the shorter ones,are of a length approximately twice the width of the compartments, andsaid flues deliver half of the air from any one of the coolingcompartments to the sccond compartment ahead. The lues 24, which are thelonger ones, are of a length approximately equal to three times thewidth of the compartments and they deliver the other half of the airfrom any one cooling compartment to the third compartment ahead. In thisinstance, the ilues are arranged in alternate sets and are in staggeredrelation, the same as the flues in the first instance, for example, asshown in Figs. 1 and 2. At their left ends the tiues 23 and 24communicate with the compartments from which they receive the air andgases through perforated portions 14 of the lioor, and where the ilues23 and 24 pass under compartments with which they do not communicate,the floor 13 thereabove is solid, which construction is similar to thatshown in Figs. 1 and 2. The flucs 23 and 24 also communicate, in amanner similar to that shown in Figs. 1 and 2, with lateral draft flues15. The remaining portions of the kiln may be of any accepted and wellknown construction.

Having described my invention, I claim:

1. 1n a kiln provided with a plurality of compartments, staggeredlyarranged communicating ilues connecting said compartments, said iuesbeing each of a length greater than the width of the compartments,whereby a plurality of compartments may be simultaneously burned.

2. ln a kiln provided with a plurality of compartments, staggeredlyarranged coinmunicating flues of a length at least equal to the width oftwo compartments connecting said compartments, whereby a plurality ofcompartments may be simultaneously burned.

3. In a kiln provided with a compartments and having a partiallyperforated iioor, communicating {lues of a length not less than thewidth of two compartments connecting :alternate compartments, theentering ends of the flues communicating with the compartments throughthe perforated portions of the floor. whereby a plurality ofcompartments may be simultaneously burned.

4. In a kiln provided with a plurality of compartments, communicatingflues arranged in sets connecting said compartments, said sets beingplaced in staggered relation whereby a plurality of compart` ments maybe simultaneously burned.

5. 1n a kiln provided with a plurality of compartments, long and shortcommunicating lines arranged in sets connecting said compartments, saidfines being arranged alternately and the sets thereof being staggered,whereby a plurality of compartments may be simultaneously burned.

plurality of 6. In a kiln provided with a plurality of compartments,long and short communicating lues connecting said compartments, saidflues being arranged alternately, whereby a plurality of compartmentsmay be simultaneously burned.

7 In a kiln provided with a plurality of compartments, long and shortcommunicating fines arranged in sets connecting said compartments, saidflues being arranged alternately and the sets thereof being staggered,said kiln having a partially perfo-v rated floor through which thecompartments communicate with the entering ends of the iues, whereby aplurality of compartments may be simultaneously burned.

8. A kiln provided with a plurality of compartments, air fluesconnecting said compartments, lateral ues connected to said air liues, amain draft flue, a waste heat Hue, all of said fines being provided withports having a right-angular relation, and a hood adapted to connect theport of the lateral flue with either of the ports of the other fines.

9. A kiln provided with a plurality of compartments, air liuesconnecting said compartments, lateral iues connecting to said air flues,a main draft iue and a waste heat iue, 11p-takes in right-angularrelation for all of said lues, and a hood adapted 'to connect thelateral flue with either the main or waste-heat Hue through saiduptakes.

VIn testimony whereof I aiix my signature.

' ROY H. MGELROY.

Copies of this patent may be obtained for ve cents .eachz by addressingthe Commissioner of Patents,

. Washington, D. Cf

